Machine for treating metal strips



A. SUNDH.

MACHINE FOR TREATING METAL STRIPS.

APPLICATION FILED MAR. 3,1920.

Patented June 7, 1921.

3 SHEETSSHEET 1.

A. SUNDH.-

MACHINE FOR TREATING METAL STRIPS.

APPLICATION FILED MARIE 1920.

Patented June 7 1921.

3 SHEETS-SHEET 2.

A. SUNDH.

MACHINE FOR TREATING METAL STRIPS. APPLICATION FILED MAR. 3. 1920.

Patented June 7, 1921.

3 SHEETS-SHEET 3- UNITED STATES PATENT. o1 ='1=1cE.

ENGINEERING AND MACHINE COMPANY, OF PHILADELPHIA, PENNSYLVANIA, ACORPORATION OF PENNSYLVANIA.

MACHINE FOR TREATING METAL STRIPS.

Specification of Letters Patent. Pate ted June 7, 1921.

Original application filed December 20, 1917, Serial No. 208,070.Divided and this application filed March 3, 1920. Serial No. 362,899.

To all whom it may concern:

Be it known that I, AUGUs'r SUNDH, a citizen of the United States, and aresident of Hastings-upon-Hudson, county of Westchester, State of NewYork, have invented certain new and useful Improvements in to be treatedand a part of the means for pickling the strips,

Figs. 3, 4 and. 5 show in section and plan the stripsplicing operation;I

Fig. 6 is an elevation of the pickling means;

Machines for Treating Metal Strips, of Fig. 7 is a fragmentary plan of aportion 60 which the following is a specification. of the apparatus ofFig. 6;

This invention broadly considered has ref- Fig. 8 is an enlarged sectionof the 10 erence to the treating of metal strips, wheremeans for holdingthe parts of the pickling by strips as they come from the annealingmeans in adjusted position, and oven are pickled, cleaned, dried andstraight- 'Fig. 9 is a wiring diagram. 65

ened and finally wound up into rolls in a thoroughly cleaned condition.

It is desirable in such a machine to provide means whereby severalstrips may be treated simultaneously, and to accomplish this end Iprovide a plurality of winding drums which are capable of drawing aplurality of strips through the machine simultaneously, and inasmuch asthe various treating means making up the machine have been provided withthis idea in mind, it is possible to stop any one of the winding drumswithout stopping work on the other strips. For the same reason I haveprovided the guides for the strips, which guide the strips in theirpassage, independently operable.

The present application is a division of my copending application,Serial No. 208,070, filed December 20, 1917, and is di rectedspecifically to that portion of the machine whereby successive stripspassing through the same may be spliced to each other readily, andwherein the strips are pickled, it being understood that a number ofstrips may be treated simultaneously, and as the rear end of each stripis reached, it is stopped without disturbing the others, and anotherstrip spliced or joined to it, this last strip then being drawn throughthe machine and treated. s heretofore mentioned the whole machine is soconstructed as to make this possible.

Referring now to the drawings wherein I have illustrated an embodimentof my invention,

Figure 1 shows in elevation a machine embodying the novel featuresmaking up my invention;

Fig. 2 shows in part sectional elevation the means provided for splicingthe strips together, the holders for the coils of strips In order that athorough understanding may be had of my invention I will describebriefly the entire machine as illustrated in Fig. 1, describing thedetails of construction illustrated in the other figures later on.

The strips are placed in a coil on the machine at B, from which theendof a strip, or all of the strips if more than one is being treatedsimultaneously, is ledthrough a pickling reservoir where the strip issubjected to a pickling operation. The strip next passes to D where itis washed and scrubbed and freed of dirt and scale, next passing to E.Here the strip is dried and straightened, next passing to winding drumsdesignated F where the strip is wound u in a thoroughly cleanedcondition. It is understood that as many strips may be treatedsimultaneously as may be desired, the number to be treated being limitedonly by the'space available for installation of the machine. I haveshown three strips being treated.

AtB, I have provided a number of holders for the supply of metal strips,these holders being in the form of slots 1, as many as may be desirable,drels or the like on which the metal coils 2 are placed. The frames inwhich the slots 1 are formed are mounted on a bed3, and adjacent an endof a pickling reservoir 4;.

"adapted to receive man This reservoir as it contains apickling acid ispreferably lead lined throughout to withthe carriers are strip-guidingsectional rollers 8, supported in the carriers by rods 9 of brass orother non-corrosive material, the rollers themselves being preferablymade of porcelain. By rotating thehand wheels 7 to the left or right asthe case may be the rollers 8 and carriers 5 may be raised and lowered.

In-order that the hand wheels may be locked, I have provided plates 10one for each Wheel,-adapted to be brought into and out of engagementwith the wheel by a hand wheel 11 mounted on a stub shaft 12 having ascrew-threaded connection with the side of the pickle reservoir.

vThe strips are passed from the supply coils over a sectional roller 13at the end of the pickle reservoir, and from thence they pass under. theupper sectional rollers 8, at the left hand end of the reservoir,through the pickle in the reservoir over sectional rollers 8 at theright hand end of the reservoir, back through the pickle, around thelower set of sectional rollers 8, and back through the pickle once moreto the right hand end'of the reservoir. From these rollers the stripsare led at an incline upwardly betweeen wipers 13 at the end of thereservoir, around sectional rollers 14, from which they pass through theremaining portions D andof the machine andare wound on the drums orblocks at F.

It will be seen that the rollers 8 in the reservoir are so disposed thateach strip is caused to pass through the pickle several times soas to bethoroughly pickled. Inasmuch as the rollers 8 are mounted on thecarriers 5 it will be seen that these carriers high as 80% may beobtained in this man- In order that it may not be necessary for' theoperator to place his hands in the pickle at any time I have rovided thehand wheels 7, rotation of whlch will raise the strips passing throughthe reservoir out of the pickle, the hand wheels then being locked bythe mechanism already described until it is desired to resumeoperations.

In order that the contents of the pickle reservoir may be heated which Ihave found desirable, I provide steam pipes 15 of some non-corrosivematerialsuch as l ead.

As it isusually desirable to coil the finished strips in greater lengthsthan they come to the mac 'ine, I have provided the splicing mechanismalready briefly-referred In and fln io'mn'hafl A. This mechanism"nnmprises a frame 16, carrying a punch head 17 adapted to bereciprocated vertically by a foot pedal 18. As many of these punch headsare provided as" there are strips to be spliced to a strip passingthrough the machine, from which figure it will be observed that the endof the coil of new strip is led from the strip holder passed around theroller 21 and passed under the rear end of the strip already in themachine. It will be-understood of course that the strip in the machinemust be at rest at this time, and I will explain presently how this isacc0mplished without stopping the operation of the entire machine. Thepedal 18 is now depressed to punch three holes through the strip asindicated at 22 in Fig. 5. The strip is then passed to the anvil 23 andhammered down .to the form indicated in Fig. 4. It will be observed thatthe finished splice has no sharp edges to catch in the machine as thestrips passthrough, which is of importance as heretofore much troublehas been experienced from the strips catching.

The wiring diagram for the machine is shown in Fig.' 9, and it will beseen from this figure that the motor 24: for driving the winding drumstogether with the motors 25 and '26 for the straightening and dryingapparatus and the washing and scrubbing apparatus all receive theirpower from a common source 27, each motor being independentlycontrollable by switches 28 or centrally controllable by a switch 29.The m0- tor 24 for the winding drums is connected to each drum byindependently operable clutch mechanism 30 controlled by a bank of pushbuttons 31, so that each drum may be started and stopped independentlyof the others in order that the splicing operation may be erformedwithout-effecting operation on t e other strips passing through themachine. a

What I claim is: 1. In mechanism of the class described, thecombinationof a plurality of strip holders, means for'drawlng a stripfrom each of said holders simultaneously and operable to holdone stripstationary while the other is moving, and manually operable mechanismfor splicing the end of a new strip'to the end of a preceding strip asthe latter remains stationary.

2. In mechanism of the class described, strip pickling means,independently operable rollers for guiding aplurality of strips passingsimultaneously through the pickling means, rollers for guiding eachstrip as it leaves the pickling means, the first rollers mentioned beingdisposed so as to cause each stir-in tn nass .thrmmh the picklin meansmore than once, and means for wiping each strip as it passes from thepickling. means,

the rollers last mentioned being so arranged that the pickle removed bythe wipers will be returned to the pickling means.

3. In mechanism of the 'class described, the combination of a picklereservoir, guides for causing a metal strip to pass through pickle insaid reservoir, and means cooperating with said guides for raising thestrip out of the pickle.

4. In mechanism of the class described, the combination of a picklereservoir, guides for causing a metal strip to pass through .pickle insaid reservoir, and means operable exterior of the reservoir for raisingsaid guides to raise the strip out of the pickle.

5. In mechanism of the class described, the combination of a picklereservoir, guides disposed to cause a strip to pass several timesthrough pickle in said reservoir, and means for raising said guides toraise the strip out of the pickle, and means for maintaining said guidesin such raised position.

means for actuating the supports to raise and lower the carriers androlls out of and into the pickle in the reservoir.

8. In mechanism of the class described, the combination of a picklereservoir, a plurality of rollers arranged in groups for con veyingstrips of metal through pickle in the reservoir, and levers formingbearings for the rollers and adapted to take the stress of the strips asthey pass over the rollers.

9. In mechanism of the class described,

the combination of a pickle reservoir, a plurality of strip supportingand guiding rollers of non-corrosive material the rollers for each stripbeing independent of the rollers for the other strips, the rollers beingarranged to cause the strips to pass through pickle in the reservoirmore than once.

10. In mechanism of the class described, the combination of a picklereservoir, holders for metal strips at one end of the reservoir, rollersfor guiding strips from said holders through pickle in the reservoir,the rollers being positioned so as to cause the strips to pass throughthe pickle more than once, levers carrying said rollers, and operable toraise the rollers and strips out of the pickle.

.11. In mechanism of the class described, the combination of a picklereservoir. groups ofindependently operable rollers in the reservoir forsupporting and guiding several metal strips simultaneously throughpickle in the reservoir, and wipers for engaging each strip afterleaving the pickle but before leaving the reservoir to remove picklefrom the strips and return the pickle thus removed to the reservoir.

12. In a machine of the class described, a pickling means, strip supplymeans adjacent the pickling means, means for drawing a plurality ofstrips simultaneously from the supply means through the pickling means,and means for splicing a strip to a strip already in the machine withoutstopping operation on the remaining strips in the machine.

13. In a machine of the class described, a pickling reservoir, stripguiding rollers therein, carriers for said rollers movable to raise andlower said rollers, said rollers being' so disposed as to cause eachstrip to pass through the pickle in the reservoir several times, andmeans for heating the pickle.

This specification signed this 27th day of February, 1920.

AUGUST SUNDH.

